Growing Groundnut in Tamil Nadu

Updated 2026-07-13 · Region guide

Tamil Nadu sits in the Southern Plateau & East Coast with tropical, hot; NE + SW monsoon and red loam, black, deltaic alluvium, laterite. Cauvery delta + tank irrigation — a leading paddy, banana, groundnut and turmeric state. Here's how groundnut — a Kharif (main) & summer crop — fits, and how to grow it well here.

Is Tamil Nadu good for growing groundnut?

When to sow groundnut in Tamil Nadu

Sow in irrigated Dec–Jan & Jun–Jul and harvest around 100–120 days later. The crop takes about 100–130 days. In Tamil Nadu's tropical, hot; NE + SW monsoon, the window matters more than anything else you do: ~950 mm rainfall and tanks, wells + Cauvery delta canals mean a late Kharif (main) & summer sowing runs groundnut into the wrong weather at its most sensitive stage.

Where groundnut actually grows in Tamil Nadu

The northern districts lead — Tiruvannamalai, Villupuram, Vellore, Cuddalore — with Salem, Namakkal, Dharmapuri, Krishnagiri, Erode, Perambalur and Ariyalur, plus Dindigul and Thoothukudi in the south. Red sandy loam and lateritic soil. The structural difference from Gujarat and Andhra: a much larger share of TN's groundnut is irrigated from wells, and that is precisely why TN has India's highest groundnut yield per hectare — but it also means the crop's economics turn on your borewell, not on the monsoon.

Where it is sold: Regulated markets at Tiruvannamalai, Cheyyar, Polur, Tindivanam, Vriddhachalam, Attur, Dharmapuri and Krishnagiri, feeding the local decorticators and oil mills that set your rate. TANFED and NAFED open PSS procurement in some years but TN's operation is small — do not plan on it. What is distinctly TN is that there are three separate demand channels paying different prices: the oil mill; the Namakkal poultry industry, India's egg capital, which buys groundnut cake as feed and puts a floor under the crushing demand; and the table and confectionery trade, where bold, sound kernels go to the roasting and candy market — Kovilpatti's kadalai mittai carries a GI tag and that trade pays for kernel quality, not oil content.

The local risk to plan for: Groundwater. The northern districts sit on hard-rock aquifers with falling water tables, and TN's groundnut area has shrunk sharply as borewells deepened and failed and growers moved to maize, tapioca and pulses. Your risk here is a well that weakens mid-season, not a monsoon that fails. And because the north-east monsoon delivers the rain in October–December, the rabi crop can meet cyclone or depression rain exactly at pod development and harvest.

Best groundnut varieties for Tamil Nadu

Grown in Tamil Nadu:

• TMV 7 — from the long-running Tindivanam series; a TN staple
• VRI 2 — Vriddhachalam, widely grown across the northern districts
• VRI 8 — a newer Vriddhachalam release
• CO 7 — from Coimbatore, suited to the irrigated crop
• ALR 3 — from Aliyarnagar, for the western belt

Confirm the variety is notified for Tamil Nadu — on red loam, black, deltaic alluvium, laterite under tanks, wells + Cauvery delta canals, a variety bred for a different zone will underperform whatever the seed packet claims. Your Tamil Nadu KVK or agriculture officer holds the current shortlist.

Typical yield & price

Typical yield here is around 12–18 quintal/acre. The government MSP is ₹6,377/quintal; local mandi rates vary, so check YieldAI for today's live Tamil Nadu price.

Common problems in Tamil Nadu

The pests and diseases to scout for:

• Red hairy caterpillar — the classic northern-TN rainfed groundnut pest. Moths emerge in a mass at the first pre-monsoon showers, and the larvae move through fields in armies. The community light trap on those first few nights is the control that actually works, and it only works if the whole village runs it together — one farmer's trap does nothing
• Leaf miner — severe here; leaflets turn papery and brown and the field looks scorched from the road
• Late leaf spot and rust — worse on TN's irrigated crop than on Andhra's dry one, because your own irrigation keeps the canopy humid. Dark spots and orange pustules defoliating from the bottom up
• Stem rot and collar rot — a real problem in the irrigated summer crop; plants collapse at the base with white fungal threads and small seed-like bodies at the collar

tropical conditions shape which of these bite hardest each season — scout early and act while a problem is small. YieldAI can identify a pest or disease from a photo of your crop.

Key practices

• Join the community light-trap drive at the first pre-monsoon showers. Catching red hairy caterpillar moths before they lay is nearly free and it is the single most effective thing in the northern districts — but it is a village-scale action, not an individual one
• Apply gypsum at pegging as your KVK advises for your soil test. On these red loams it is what fills the pods rather than just growing the plant, and it is routinely skipped
• Put the irrigated crop on sprinkler or micro-irrigation. In a belt where the borewell is the binding constraint, stretching a weakening well across the pegging and pod-fill window is worth more than any extra input
• Time the crop so pod development and harvest miss the north-east monsoon's cyclone window, and confirm which grade you are selling into — the table and roasting trade pays for bold, sound kernels, the oil mill does not